c21girl

I have a 2005 ES 330 with Mark Levinson system (no Nav. system). The system display works, but there is no sound at all. What can I try for an easy fix before taking to the dealership and spending big bucks?

m0098es

From some quick searching on here and online it sounds like Mark Levinson systems have amps that are known to fail and when that happens there's no sound. If your car is on warranty this would be covered.

The easiest thing to check, though, would probably be fuses.

03 ES

Sounds like a bad amplifier. When an amp goes it almost always causes the audio system to have no sound.

JudyVA

Is there any way to discover if it's the amp or the wiring/grounding?

Power6

not an easy way to diganose the wiring other than physical inspection, you have to swap out the amp with a known good one to rule that out.

The likelihood of the wiring failing is low unless you have any other circumstances you have not shared that lead you to suspect that. The amp is much more likely. you could hit EBay and pick up a used amp. Even if that didn't work out you could sell the amp on, that is still cheaper than the dealer diagnosis, unless you can get them to do that for free. My guess is the dealer will just tell you it is the amp and want to charge you the zillion dollars a new one costs.