I installed a Bluetooth adapter from VAIS in my 08 ML.

There is a loose connection. Only the radio is affected. As I hit hard bumps all the speakers except the drivers go out. If I smack the dash sometimes it comes back.

So im going to pull the radio again and look for loose wires, but I was hoping someone could tell me which connections are the likely culprit. I already damaged the dash a little the first time and I really don’t want to be in and out of the dash a bunch.

So thanks in advance.