Entertainment Electronics 1st Gen Most liked posts in thread: MAS POWER?! What are these...

Since your Garage says you are not the first to enjoy this MINI I'm going to venture to say the previous owner had some sort of aftermarket device under the seat. The RCA's most likely go to the back of the head unit and the other wire leads to a power source. There are so many possibilities that it's hard to narrow it down. Could have been a CD Changer or a Surius tuner. The possible power wire looks to small for an amp. Might also be a lead to tell whatever was there to turn on when the head unit does. Follow them and see where they go.

 

it's a pair of RCA's and a 12V trigger to turn an amp on. The trigger has been capped off with a tophat splice since it's live. There's probably power wire somewhere under the carpet too.

When I sold my MINI, I didn't pull the wiring out. I cut it off at the battery, removed the terminal from the battery and cut the RCA's, trigger and power wire off under the seat, leaving wiring under the carpet.