Check your car fuses.
Check your wire connections. If the wires are out of order, it may prevent the car from starting.
change your sparkplugs
the minimum gap is 0.039", I just changed the sparkplugs of my Tracker ___________________________________ On my 98 tracker the specs are on the inside of the hood, have you checked there?
They are six inches. I own a 2001 mirage and just changed the speakers today.
I had a problem just like that, I replaced sparkplugs and wires and my engine had a bad miss also; performed a compression test on all cylinders check out good ; found out sparkplugs was bad, got those NGK's sparkplugs ran better than ever.
vw specify 60 000 miles
The electromagnet is a very important part of loud speakers. The electromagnet is always placed in the front of the magnet. When the electricity goes through the electromagnet the field is changed and this produces the vibrations in speakers.
cam belt should be changed at 50,000 miles and not a mile more. cam belt brakage on this engine is very expensive.
Sparkplugs should be changed at regular intervals, it will usually state how often in the service manual and most garages will do it during a service regardless. It is no harm and often a good idea to check the sparkplugs yourself as the condition of the sparkplus can hint at other problems in an engine. See the following website for more details http://www.ngksparkplugs.com/tech_support/spark_plugs/faqs/faqread.asp Depending on the engine it can be a relatively straightforward task or an agonizing ordeal.
VW say it should be changed every 60,000mls
The card needs to be configured, or re-configured to play through more then 2 speakers. This can be changed in "Audio/Speakers/Sound" in the control panel.
What does your owner's manual say? I would change them if the engine is not performing as it should, you are getting poor mileage, or you have over 75,000 miles on these plugs.