When I did my stereo system in the boat, I sold the deck that was in there (basic MP3/USB/Aux deck) and was running just a Wetsounds EQ and no head unit. That was fine for a while, but I found myself lacking Bluetooth. I ran music off my phone using a car cradle. But that meant that my phone was held hostage and I couldn't take it out of the cradle to take a picture or whatever without stopping the music. We also took the boat out to watch the Rose Festival opening fireworks in Portland and were bummed that we couldn't tune in to the simulcast since we didn't have a radio (and the internet feed was easily 1/2 a song delayed so it was worthless).
I started thinking that putting a deck back into the Supra would be the easily way to get BT (and FM Radio).
Then a buddy of mine told me that he had a Kenwood with BT, USB, MP3, etc. that he'd sell me for $25!!!!!!!!!!
I said "SHUT UP AND TAKE MY MONEY".
Today I hacked up the dash enough to fit the deck on top of the WS420-SQ and think that it turned out pretty good. I never liked the look of the pocket filler I had in there.
I think it turned out good. I had installed a master switch to send the remote turn on lead to my WS420SQ and my amplifiers, so I kept that and hooked up the deck so it's powered off the master switch too. I didn't want a staggered install of the EQ and deck, so I had to chop my dash a little over the DIN opening and a little under. It barely fit, but I'm satisfied with it. It's going to be a LOT more functional with the bluetooth, so I'm quite happy.
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And on my OEM switch panel I now have the COURT LT switch powering my LED interior accent lights. The INT LT switch powers my Tower lights. and the ACC switch powers my underwater transom lights.