I've got a better question, why is this question in the Chevy venture forum ?
http://faculty.ccp.edu/faculty/dreed/campingart/jettatech
How do I replace rear brakes on a VW Polo GTI
Take a photo of your front disc and pads.and ill be able to explain how.
front suspentoin
200
The front door speakers in a 2004 Volkswagen Polo measure 6.7 inches. This is equal to about 170 mm or 17 cm.
To replace the brake light bulbs on a VW Polo, pull away the carpeting in the trunk, unscrew the bolt holding the lights on, and disconnect the wiring. Replace the bulbs, put the wiring and bolts back, then replace the carpeting.
The size of the original front door speakers in a Volkswagen Polo is 6.7 inches or 17 cm. The speakers can be upgraded to larger diameter units.
You will want to replace a brake light switch on a VW Polo professionally. You do not want to make a bigger situation than you already have. A mechanic will do the job correctly.
16.5cm in the front doors
Two in the front.