Who says there is nowhere to mount an amp in a MR2?
I had a friend make a bracket from aluminium that uses existing bolts, so i didn't have to drill any holes.
With the covers on, you wouldn't even know it's there.....
Other than the head unit, all the speakers and cabling are totally concealed, so the car still looks totally original.
I know many people don't like adding audio systems because of the extra weight, but with 800km drives to Adelaide, or 400kms to the nearest major town i kinda need good sound lol.