Someone offering me on ebay brand new PDX 5 for £170, worth it? PDX 5 can take care of rear 2 channel, center one channel and in future boot sub box too, seems a good choice.
X5 40d M Sports - Fully loaded, 7 seats.
Sold 535d LCI, Xenon Adaptive Headlights, ACC 2 (Stop and Go), LDW/TLC
Retrofits M5 heated/lumbar/memory and active backrest adjustment seats, rear heated and folding g seats, SAT Shifter, paddles (SA2TB), HUD, Rear blinds, Electric steering column, SA430 Folding and EC Mirrors, High Beam Assist, CIC, COMBOX Telematics.