I ordered this one for the backup. Arriving tomorrow, can always return it if I do not like it.
I need another crossover for the subs, but otherwise my system is great. I might tape the canbus like you did, did not cross my mind as it worked out of the box.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

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E53 X5 4.8is-Dinan S2-Street Brawler
E70 X5M-The stoplight shocker
AMG E55K-539 RWHP, 629RWTQ-my toy
GX470-the unbreakable truck.
F30 328i-JB4 STG 2. Daily MPG Work Beater
02-WS6, 6sp my other toy
...other stuff parked around here somewhere