Piston Slap: Is There a Mouse In My Boombox?

Sajeev Mehta
by Sajeev Mehta

Greg writes:

Hello, I have a 2002 Toyota Camry SE with about 120K on it that has been overall pretty reliable. For the past few months, the OEM (it is not aftermarket) radio has turned psychotic and turns itself on and off and flips from radio to CD at will – or so it seems. It seems like this is a loose wire as it is really noticeable when I go over certain bumpy areas in the road, the radio pre-sets disappear and I have to reset them again and again. Can you advise me what to do next?

PS – My four year old thinks there is a mouse in the radio since it turns it self off and on all of the time.

Sajeev replies:

It’s probably internal to the stereo, which means your little one is right: the mouse is microscopic and jumping up and down on the circuit boards inside the stereo. It’s usually a simple fix for a stereo rebuilder: a little soldering iron and maybe a few resistors is all it takes. If you want to keep the current unit in your dashboard and can’t find a replacement from a recycler, that is.

You might feel better with the latest aftermarket head unit with MP3 plugs, HD radio and whatever else floats your boat. The aftermarket unit will set you back $175 or more (or less if you DIY) so the only reason to stick with the Toyota unit is if you like the original look and sound of your Camry.

There is no wrong answer, just take the plunge and never look back.

(Send your queries to mehta@ttac.com)

Sajeev Mehta
Sajeev Mehta

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  • Nick Nick on Sep 18, 2009

    Don't laugh about the mice thing. I went on an extended business trip to Texas one winter and when I came back mice had colonized the entire back seat of my Nissan. There were tunnels through the seat cushions and nests and everything. Sons of bitches.

  • Golden2husky Golden2husky on Sep 18, 2009
    So the Merkin’ cars can make 100k. How many will still be on the road with their Japanese cousins at 200k? Let’s try for 300k? NO American car will make 300k... Don't be so fast to make such an ignorant comment, when a quick web search finds plenty of examples of many makes that exceed 300K, including some of those "buffoon-mobiles"...and when my AX4S craps out, I'll let you know... Regarding stereo power requirements, to say 50 watts (I am assuming RMS power) is all that is needed is false. Some speakers have such low sensitivity that you really need 100 w or more to avoid clipping the amp...
  • Gsw0 Gsw0 on Sep 20, 2009

    Many thanks to all who have posted responses, but a big shoutout to Jimbear who nailed the diagnosis. As soon as I read his response about his daughter using the cassette deck player as a piggy bank, I recalled my young'un being very interested in the boombox system many months ago. I walked outside to the car took one look at the inside of the cassette player and viola -- I spotted multiple coins deposited inside. Unfortunetly, I cannot get at them. Now what do I do? It appears get a Haynes manual and try to DIY or go and get a aftermarket one and upgrade. For an average DIY 'er trying to get at the OEM without a crowbar appears impossible.

  • Dmrdano Dmrdano on Sep 21, 2009

    There you go, isn't if funny how often problems develop from people sticking things where they don't belong? Thus endeth the lesson.

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