Satellite Radio install

[Spiny Norman]

Hi guys - I've had help here before and I thought I'd see if anyone has any experience of this.

So, we have had Sirius in my wife's 2003 Pilot for about 5 years now. Best Buy installed it for us. It's located on the very left side of the dash attached by suction cup to the lower left corner of the windshield. The power and the antenna cord come from behind the dash and plug into the receiver. All has been fine (except I'd wanted BB to make it so the radio worked when the key was in the accessory position, not just when the ignition was on - but we learned to live with that).

Anyway, last week the suction cup lost suction and the unit crashed to the floor leaving the receiver hanging. The install hasn't worked since. I checked the receiver with another power source and it works but the power lead installed originally now isn't working. I've tried to find where this is wired up to but it's a maze behind there and I can't see behind the dash nor get my hand in to trace the wire.

Does anyone have any thoughts where they may have wired this to and how I can identify and find it? I'm sure it's just a loose connection or maybe a broken wire. I've looked at loads of fuses and they seem fine though I have no idea if I'm looking at the correct ones. I have a users manual and a Haynes manual but I can't figure out which fuse would be likely culprit.

Anyone have any thought of what my next steps should be. I'd prefer to DIY than return to BB.

Many thanks for your help.