2001 New Beetle and M-Link V-1 B Repair

Years ago my dad installed an M-Link V-1 B in my mom’s 2001 New Beetle. Oddly, the V-1 B isn’t even recommended for this model of vehicle, but I’ll let that go for now. The information I’m passing on today is a fix for when your iPod connector breaks from the M-Link cable.

The M-Link’s iPod connector end is easy to take apart and once inside I found this:

I couldn’t tell which wire went where; however, M-Link provided these photos that helped me fix my adapter:

After M-Link sent pictures, I used this site to draft up a wire and pin number table for those who care. I’ll format this table later, but wanted to post it now to help folks sooner:

Wire color       Pin number	Apple Pin	Function
black 29,30 1,2 FireWire Ground, –
red 21 10 Accessory indicator/serial enable
white 4 27 Audio output, left channel, +
orange 3 28 Audio output, right channel, +
yellow 19,20 11,12 +12 volt, FireWire Power
green 13 18 iPod receiving line, serial RxD
blue 2 29,30 Audio ground, –
brown 12 19 iPod sending line, serial TxD

* Numbers printed on M-Link V-1 B PCB refer to Apple Pins

Also, I was able to resolver the broken cable and my M-Link V-1 B is working again.

2001 New Beetle and Oxygen Sensor

Last week I tried pulling the O2 sensor off my New Beetle and I nearly sheared the damn sensor off, and bungled one of the points on the sensor in the process. I regrouped and bought a couple sockets off of Amazon, but they didn’t even fit on. In the end, here’s what worked:

1. Using MAPP gas heat the bung, the female threads holding the oxygen sensor in place, for 70 seconds.
2. Clip the wire off the old sensor and place a 12-point 7/8-inch box-end wrench over the sensor and pull.

That’s it. The sensor required some strength to break it free, but then it came out pretty easy. I was tempted to spin it with my fingers, but be careful as it will retain heat for a good ten minutes after heat was last applied. To reinstall the new sensor (I bought a cheap one on eBay marked 050558 000025-050558 613234-21-05 and Made In China):

1. Apply anti-seize lubricant (Permatex 133A – 81343) to the oxygen sensor’s threads.
2. Apply AGS dielectric silicone compound to the electrical connections on the oxygen sensor and the car.
3. Thread the new sensor into place and snug up with a good tug on a 7/8-inch open-end wrench (I don’t have a torque wrench to apply 30 pounds with, so I estimated).

If this cheap sensor performs I’ll pick up another for front side of the catalytic converter.

A1296 mouse repair

My Apple Magic Mouse A1296 was suddenly turning off whenever I moved it around or bumped it. I pulled the batteries out and noticed some battery acid deposits on the positive terminal of the mouse. Easy fix, once again my fiberglass pen to the rescue, in the picture below see the battery acid on the left terminal and the cleaned terminal on the right side:

A1296 with dirty positive terminal on left and cleaned positive terminal on right.

Since cleaning the terminals the Magic Mouse is once again working flawlessly.

Park Tool PFP-3 Fix

I’m not really sure how this happened to my Park Tool PFP-3, but somehow I misplaced the rubber gasket that goes between the pump shaft and the base (or maybe it fell off when I was taking it apart). No big deal, I’ve got a handful of extra rubber hose washers for my garden hose and I was able to stretch one around the pump’s shaft. The gaskets I used are TerraVerde Splash 91422 (UPC 715064914223), which seem to have some stretchiness to them.

Only one garden hose washer was needed for an excellent replacement o-ring. Park Tool shows some maintenance for the PFP-3 and watch my video for some of the repair in action.

US Bank and Returned Deposit Fee

Today I had the pleasure of working with US Bank’s, Justina, after my daughter recently incurred a returned deposit fee. Justina was excellent and forthright in explaining US Bank’s fee and that they will not verify a personal check before a customer attempts to deposit it. She said US Bank will verify cashier’s checks, but not personal checks. This is a note to self and others: stop accepting personal checks for payment from others unless you want to expose yourself to liability that includes your banker’s returned deposit fee.

Interestingly, deposits can also be returned if the personal check has incurred too much damage. I asked Justina what constitutes damage and she explained that damage to numbers on the check may warrant a returned deposit fee – if a deposited check rolls through US Bank’s teller machine and is unreadable, they can assess you a returned deposit fee.

I’m curious what else meets US Bank’s criteria for customers incurring a returned deposit fee. For instance, if the check’s paper has too much moisture and slips in the teller’s machine, what moisture to paper ratio warrants a returned deposit fee? Ha, this inquiry will wait for another day. In the mean time, don’t handle personal checks.

FTP download folder

Every once in a while I want to be able to download an entire folder from an FTP server. After setting the local download directory, with something like:

lcd /Users/brad/Desktop/Junk

I navigate to the directory on the FTP site containing all the files I wish to download and type:

# the command above allows the downloads to keep going without user intervention

and then
mget *.*
# mget with the above wildcard should download any file in the directory. There are any number of ways to limit it, for instance, if you only want .csv files use the following command:

mget *.csv

Homebridge Enhancement

I’ve been running the open source Homebridge project on a Mac mini, now on Monterey, with several plugins and good success. I remember reading about setting the plugins as a child process to offer improved responsiveness when accessing HomeKit on an iOS device. These instructions show one of the ways to create a child process.

Prerequisites for this are running homebridge and a venerable plugin, homebridge-config-ui-x, then:

1. Access your homebridge installation using the web ui provided through homebridge-config-ui-x.
2. Near the top of the browser window, click “Plugins”.
3. For the plugin you wish to be more responsive, tap the wrench to the lower right of its name and choose “Bridge Settings”.

4. Slide the child toggle to the right, click “Save”, and then restart homebridge.


5. In Home.app on your iOS device, click the “+” and then “Add Accessory”.
6. Click “More options…” and choose the accessory that you turned into a child bridge above.

Before completing step 6, you may want to delete any plugins that were previously added as a non-child bridge. And when adding the new child bridge, follow the questions and prompts that Home.app presents to you.

That’s all, the plugin you enabled as a child bridge. I’ll continue to test this feature and report back here how it is working.

Faster First-Time Time Capsule Backup

Turns out this post is a draft in process – the instructions work up until step 13, lucky 13! If I continue to update this, I will look at instructions here, here, here, here, and maybe even here.


My macbookpro11,4 rocks a 2TB SSD and over half of it is full. I jailbroke our Time Capsule and successfully transferred 3 Time Machine backups, but the backup for my macbookpro11,4 got messed up. Rather than troubleshoot further, I decided to erase the macbookpro11,4’s sparsebundle from the Time Capsule and start fresh. A first-time backup to our Time Capsule would take days to transfer this much data from the macbookpro11,4 and the first backup would likely be disturbed every time I pull my macbookpro11,4 off the local network and go somewhere.

To speed this up, I had the macbookpro11,4 complete its first-time backup to a FireWire 800 2TB hard drive, which took 6 hours. I then moved the FireWire drive to a desktop computer that stays on my network. Fortunately Aaron Cohen has kindly published instructions for what I proposed above. I’ve ever so slightly tweaked those instructions, here:

  1. Preferably using USB, FireWire, or Thunderbolt, connect an external hard drive to your Mac you wish to backup and complete a Time Machine backup.
  2. Make sure your computer has a name in System Preferences -> Sharing or your first Time Capsule backup could fail.
  3. Set up your Time Capsule using the AirPort Utility. When you’re done, you should be able to see the Time Capsule under Locations in the sidebar of a Finder window.
  4. Mount the Time Capsule drive, by selecting the Time Capsule in the sidebar, and then, if necessary, clicking the Connect As… button and entering your Time Capsule password (that you set up in the AirPort Utility).
  5. You should then see a folder called Data, representing the internal disk in your Time Capsule.
  6. Double-click on the Data folder to open it; it should be empty.
  7. From the Mac you wish to back-up over your Time, open the Time Machine preference pane, click “Select Backup Disk…”, and choose your Time Capsule from the list.
  8. From the Time Machine menu on your Mac, click “Back Up Now” to force Time Machine to start backing up to your Time Capsule. Once it starts whirring along, look in the Time Machine preference pane and you should see “Backing up X MB of Y MB” or check out the Finder window that was showing the contents of your Data folder where a sparsebundle file should now appear. When either of these conditions are true, cancel the Time Machine backup as we only started it to create a sparsebundle file that we’ll use later. When your Mac stops backing up to the Time Capsule, turn Time Machine off on your Mac.
  9. Download SuperDuper!, which is an excellent backup and disk copying application. The free version is all you’ll need, but if you like it, I recommend the full version to support Dave Nanian and his super effort.
  10. Move the external hard drive to a computer on your local network. Preferably this computer will have an ethernet connection (preferred) to your Time Capsule
  11. From the Time Capsule Data folder, double-click the sparsebundle file that was created moments ago. Doing this should mount a new drive Time Machine green icon on your desktop called “Backup of [your computer name]”.
  12. Launch SuperDuper, set it to copy your old backup drive to “Backup of [your computer name]” with “Backup – all files”, and click the “Options…” button and under “During copy” choose “Erase Backup of [your computer name], then copy files from [your computer’s hard drive name]”, click “Copy Now”, and enter your credentials when SuperDuper! prompts you.
  13. This transfer will take a while, but at least your MacBook device is free to leave the network. It appears my 1.2 TB of backups will take at least a day, copying from a FireWire 800 drive to a Mac mini ethernet connected to a Time Capsule.
  14. When the Mac mini to Time Capsule transfer finishes, re-visit Time Machine preferences on your MacBook select your Time Capsule as the backup drive and check the box for automatically backup.
  15. Either enter Time Machine to verify that your backup history is still present or run another backup to verify connectivity. The first network based Time Machine backup after the copy described above may take a while during the Preparing… phase, but after that it should be working.

Thanks for setting us up, Aaron! Before finding Aaron’s instructions, I also checked out Pondini’s old site and a couple Apple Exchange sites, but Aaron’s website was the best.

OpenCore Legacy Patcher

Courtesy of OpenCore Legacy Patcher, my older macmini5,3 and macbook6,1 have been running Monterey smoothly. With macOS Ventura due later this year, I will likely move our macpro5,1, macbookpro11,4, and macbookpro12,1 machines to Ventura and also need to use OpenCore Legacy Patcher. Before we do that, I want to jot down instructions for upgrading Ventura for these machines and Ventura is not running well on OpenCore Legacy Patcher just yet. The instructions below are based on Mr. Macintosh’s video on upgrading Monterey with OpenCore Legacy Patcher, but I expect these steps to be the same or similar:

1. Backup your machine! (I recommend a bootable backup in addition to a Time Machine backup if you can afford the space).

2. Update macOS like you would on a supported machine (click Apple logo->About This Mac->Software Update…->Advanced…->Ok->Update Now. Adding clicks for “Advanced” and “Update now…” might allow your Mac to update faster if it already had a chance to download the patch. This will probably take about an hour and ends with your Mac needing to restart. If your Mac doesn’t install the update, skip to the next step and then repeat step 2 at the end.

3. When your Mac boots back up, run the latest version of OpenCore Legacy Patcher, get it here. Fire up the OpenCore Legacy Patcher application and then we will build and install OpenCore to the boot drive EFI. Before you do build and install, you might want to change the bootpicker to false if you don’t want your Mac users seeing extra options during boots or restarts (and you can still get to these by holding down the option key at start-up). Build and install OpenCore to the boot drive’s EFI. Also, to get macOS system updates to load, you’ll need to set spoofing to “minimal” through OpenCore Legacy Patcher).

4. This step is not needed for Metal Macs. For non-Metal Macs, run OpenCore Legacy Patcher and then click “Post Install Root Patch”, click “Start Root Patching”, click “Yes” to give OpenCore Legacy Patcher root access, enter your credentials when prompted, and when prompted click “Reboot” and then “Restart” to restart your machine. This step will load the proper GPU graphics drivers and more to speed up your Mac.

Expect to see edits to these instructions as I continue bringing our legacy hardware to Ventura. Also note, I started using the text-based interface and moved to the GUI OpenCore Legacy Patcher interface since the two codebases should be in sync, at least according to Mr. Macintosh that is true. OpenCore Legacy Patcher will be called OpenCore-patch when it is sitting in your Applications folder or wherever you install it. Ventura will not