I need to no how to bridge a mtx thunder TA5601 Amp

I hesitate to answer this question for fear that you will not like the answer even if it is the truth. I have received a bad rating from a couple of people in the past just because the right answer was not what they wanted to hear.

This is a mono sub-woofer amp, which means that it is already bridged internally. You only have one speaker output in this amp, that means that the amp circuit is bridged inside, it is not split into two channels.

To bridge any output, it requires 2 channels, otherwise there is nothing to bridge.

I have been repairing car amplifiers for over 18 years, and I promise you that there is no way to bridge a single channel amp. Bridging means to convert 2 channels into 1 channel. If all you have is one channel, then there is nothing left to bridge.

I hope this explains it for you, if you have any other questions feel free to post them here and I will answer as soon as possible.

And please do not punish me with a bad rating if you do not like the answer, it is the correct answer, and sometimes the right answer is not always what we want to hear, but it does not make it wrong.

Dave