1988 rx7 convertible
 

I'm currently ( slowly ) but surely rebuilding my 88 convertible, I am having a problem with my stareo turning off while driving , I'm thinking it's because it's using to much power with heater and lights on? Could that be it?

More info please.
Is the stereo original or aftermarket?
does it blow a fuse or does it cut out but stay on.
Shut right off and then come back on?

It's aftermarket but nothing great, it stays powered on like when the power in your house flickers but comes right back on

Did you check to see if it's a loose wire or a bad connection? I had that happen to me on one of my older vehicles that came with an aftermarket stereo.

Bad connection.
You need to check the wiring to the unit.
If your heater,etc shut down TOO when this happens then I would be looking at something else,but it sounds like you have a loose wire to the stereo itself.

hmm makes sense.. no the heater doesn't shut down but when i hit a numb the stereo goes off and when i turn the volume up pretty loud it goes off and back on

Also rebuilding the same 88 convertible... good luck.

Definitely sounds like a bad connection.