Was man im Netz alles so findet. :-))

Für die defekten Mosfets (4 Stück auf der Bose-Box)

"Those style of amps are used in just about every type of Bose install for the past 15 or years. So any car new car can be robbed of parts to fix the NSX amps. Looking at the transistors, two of them are made by IR and have Bose's generic part number: 137110. This part number does not exist and appears (high confidence) to be a relabeled IR's FIZ24 transistor."

Ferner sehr interessant:

http://www.nsxprime.com/FAQ/DIY/bose_rr.htm

Und...

Nicht billig und nicht auf den V8 abgestimmt, aber immerhin:

http://www.linkmeup.com/bra001.htm

Grüße,
Maik