Markbass Little Mark Amplifier Head Fan Replacement

I replace a noisy fan in a Markbass Combo Head II (Little Mark III) with a fan from another Markbass amp. Here's a link to the 3rd party replacement fan for Markbass heads. It is a 3 wire fan but comes with several adapters. None of the adapters change the power connector to the 2 wire/4 pin connector that the amp needs, however, I found that connecting the fan to the included adapter that has the large 4 pin connector changes the fan from 3 wire to 2 wire. I then clipped off the large 4 pin connector and spliced the wires to the original smaller 4 pin connector that I removed from the defective OEM fan. https://amzn.to/3QrBNlJ