wblexusowner

Hey I'm having this exact problem. Can you please send me. Email so I can give you my cell number. I would like to talk to you quickly over the phone on where the locations are to inspect myself.. thanks my email is w_Burwell@yahoo.com

Thanks in advance. It will be quick!

90% of the time the source of a leak such as you've described is one or more of the sunroof drain lines being clogged by years of falling debris, especially on a vehicle as old as yours. If this vehicle has never had its drain lines blown out with compressed air to clear the built-up debris, I can almost guarantee you that's your culprit. Regardless of what your "leak specialist" determines and recommends, be sure to blow out those drain lines....

Thanks for the tip. I just talked to the leak specialist, he said $160-250 on average. Considering I saw references to $3400 to have stuff like this fixed at the Lexus dealer, including having the carpet replaced, I do not mind paying somebody 2 bills to identify what the source of the leak really is and prevent more extensive damage than I'm already facing.

Also, I found the technical manuals here in the forums for the '99 RX 300 and from what I can tell the sound system is close enough to '00 that I can use the troubleshooting procedures in the body electrical manual to find the culprit with the stereo problem. Given what I already know and have checked already, I suspect it is the power amplifier got wet or a wire harness connector is shorting to ground due to being wet.