I have the Denonford 8250ti which I'm considering putting in my camper van but just realized I can't control the system from bed like my old sony HU. I just need control of the volume so could I just put something before/after the amp and mount it near the bed.
sometimes the upgrasding the face plate to the next model up with remote control can sometimes work..i've heard and seen it done, but it's not a guarantee.
Or you can use a L-pad type deal on the speaker wires..
l pads are for tweeters and probably not handle full range power
althought it really depends on listening habits
i would just put a volume pot on the rca level myself