Let's start again, I was launching a boat in Florida, I got stuck in the sand, I spun out and the right driveshaft broke. The tire was spinning up sand and salt water. The sunroof was working before this happened and now it's not. I've checked all the fuses, so I would imagine that the siren module would be the issue

 

The alarm module is located in the right front fender well - right behind the headlamp - you could try disconnecting it - You get to it from the wheel well, take rf tire off, move inner fender out of the way -

 

thanks for the information, I'll try that once I get a little time.
I got this car from my brother n law and he said that the radio was out, I found a place called Bessler auto parts online. You can find most parts for any vehicle, and I'm going to get a replacement radio for my 2005

 

The "radio" in a xc90 is on a fiber optic bus. It will not be as easy as you would hope to replace your "radio" with aftermarket or a factory unit and have everything work.

 

So I have a position light code, the right rear lamp is out. I switched bulbs, nor sure if I have the correct bulbs number.
also my radio is out. I've found another one to replace. What are the issues with replacement of another radio.
Thanks for your help