Technical 100hp Stereo Upgrade - subwoofer issues

[Robbyrner]

Hello! New user, new 100hp owner...
So... I’m changing the head unit for a Pioneer SPH-10BT unit, with the optional parking sensors. I have a 2010 100hp so there was no workaround with the AUX in function and I had to go down the new head unit path.
I’ve done a trial ‘plug in’ and it all seems to work, bar the steering wheel controls (as expected) but I’ve noticed the subwoofer doesn’t work with the ISO adapter, is there a way I can get this working?? I’m not afraid to cut wires etc, but if I can avoid it I will. Ideally I’d have the steering wheel controls too, but that’s not top priority at the moment.
Any help, greatly received.

 

[Robbyrner]

For anyone interested... I did sort this and now have the subwoofer working, I had to splice into the rear left and right (+ and -) speaker cables in the ISO adaptor, as well as a ground, and I spliced into the antenna power out on the ISO adaptor, which I connected to the 1 wire going into the yellow block (that was previously plugged into the original head unit.
So new head unit, with working subwoofer

 

[Sheddi]

Glad to hear you got it sorted out.

That Pioneer unit is quite some bit of kit, I never imagined I'd see a head unit with parking sensors integrated!

 

[Robbyrner]

It’s a bloody good head unit, all the functionality of a much more expensive double DIN unit, just utilising your iPhone as the main screen!
Parking sensors are the next job, but can’t be any more difficult than the subwoofer dilemma!