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problem with PSE my04C4S

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post-29729-1209691211_thumb.jpgyesterday i installed an XM tuner in my car . so pull the horseshoe with all the switchs in it and got the nav /radio out without breaking anything .when i put it all back together the PSE did'nt work it was stuck in quiet mode (that sucked) i though maybe i broke the switch when i removed the plug from the back of it . so i ordered a new switch from sunset only 23$ anyway today i played with the old switch with no luck so i just left the switch out till the new one gets here .about a hour ago it just start working with no switch at all . anybody have any problems with this sytem
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The switch is only to keep the PSE quiet, he controls a solenoid which cut vacuum to the muffler valves to make them loud or ad vacuum to keep them quiet.

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