Originally Posted by SCRAVEN
Thanks for the warm welcome,
Here is what I have been able to find on the wiring.
2008 Saturn Astra Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Red
Car Radio Accessory Switched 12v+ Wire: N/A
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Brown/Blue
Right Front Speaker Positive Wire (+): Yellow
Right Front Speaker Negative Wire (-): Brown/Yellow
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Green
Left Rear Speaker Negative Wire (-): Brown/Green
Right Rear Speaker Positive Wire (+): White
Right Rear Speaker Negative Wire (-): Brown/White
Because I will have limited access to the back of the stereo my plan was as mentioned go right to the battery (with fuse), ground out to a bolt in the back (most likely a seat mount) and then tap directly into the rear speaker wires before it hits the speakers because i have better access. The "remote" power lead from the amp would tap into the Car Stereo Antenna Trigger Wire: Pink that way the amp will come on when the radio comes on. We just bought the car so I have not had much time to actually get in and play around. But my biggest concern is getting it all apart and require some additional "stuff" Does the fuse holder come with a Terminal ring etc to bolt to the battery or will I need to purchase that?
The FAST adapter (FAST-9999) takes up very little space once installed, so keep that in mind.
The BTA10100 will come with;
10" wiring harness
In-Line fuse holder with 7.5 amp (fuse holder has 6" leads on both ends)
3 Crimp Butt connectors
1 Crimp On Ring
1 Self Tapping Screw
You will want to purchase an additional Crimp On Ring for the connection at the battery terminal.
I will post the installation sheet for the FAST Harness so you can see how small it really is. This may help in your decision and will make installation a bit easier. Either way you go with the Tubes, your making the right decision by installing a Bazooka.