Folks, after the grief I've had recently with the Bose amp in my car I'm wondering if it can be replaced with an aftermarket amp. Does anyone know of any cases of people replacing the Bose amp with an aftermarket one, yet retaining the RNS and Bose speaker set up? I've trawled the internet and cant find anything similar. The closest I came across were a few guides where an additional amplifier has been integrated to the Bose system to run a sub. Does anyone know if its possible, or even if there are any adapters available? A replacement Bose amp is the guts of £700, so I'd rather get a cheaper more reliable aftermarket replacement if possible. Car is an 8J TT, but I would expect it would be the same idea in any Audi.