I want to change the radio

Wiring is in the link. Match with the new one wiring schematic.

https://www.google.com/search?q=toyota+tacoma+stereo+wiring+diagram

Other help

https://www.google.com/search?q=toyota+tacoma+radio+replacement

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Sorry we don't have that, you could try a company called Crutchfield

Pioneer is a first line brand and should provide you the best signal. If you had good reception previusly and with a new Pioneed unit it's poor, your new Pioneer is defective!. Take it back and demand your warranty, so they should change it or repair it so it should sound perfect. DON'T TRY TO "repair" IT Might lose warranty!

Most aftermarket pioneer cd/radio decks have the electrical connector for the antenna that I've seen.

Is this a cd only deck, or does it have radio functions?

Did you use a new harness wiring adapter to get the pioneer radio to work with the old harness?
There should be a color coded set of wires for the power antenna on that. And, then the Pioneer radio should have wires that were labeled for the power antenna.

You should be able to see two (2) small grooves on the face of your VW radio, one on each side of the radio. You will need to insert a small flat tool into both slots simultaneously to release the radio from it's cradle. A small flat head screwdriver might actually work.

Depending upon the radio being installed, it might actually fit into the existing cradle, or you may have to partially disassemble the dash in order to switch cradles.

Why do you need to remove the dash the front trim should come off then go spend 10 bucks on a wire harness adapter wire it to your new radio then plug it in to the factory plug from the back of stock radio.

check the fuse it is easy to blow them when installing new radios

is this a post raido or flat face? flat faces will have din pins 2 hole each side of raido have to get a tool to remove --also get wire adp. frm parts store will b -easy that way

Constant 12V+ Light Green

Switched 12V+ Yellow/Black

Ground Chassis

Illumination Blue/Brown

Dimmer n/a

Antenna Trigger n/a

Front Speakers 5 1/4" Doors

Left Front (+) Green
Left Front (-) Black/White

Right Front (+) White/Red
Right Front (-) Black/White

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Buy a new radio. I know its not a joke, im serious, if your running the stock radio its time for a new one, dodge builds cars, not radios. Go to bestbuy spend 100 bucks have them install it, its the easy way.