avic4u Posted November 17, 2008 Report Share Posted November 17, 2008 I'm hoping I can get a quick answer to this question as I'm looking to try and make my installation happen tomorrow. I am installing the F90BT head unit. I have done a lot of investigation and homework as far as wiring etc. - but in looking over the harnesses and wiring I have here, only the "car speed signal" wire confuses me. This is the pink wire and I must connect it to the Vehicle Injection computer. Is there another name for this computer? I can't seen to be able to locate it on my 2005 Toyota Matrix. Also, I prefer to mount the GPS antenna on the dash. Are you guys getting a good strong signal? Thanks, Marc Quote Link to post Share on other sites
terron Posted November 17, 2008 Report Share Posted November 17, 2008 I'm hoping I can get a quick answer to this question as I'm looking to try and make my installation happen tomorrow. I am installing the F90BT head unit. I have done a lot of investigation and homework as far as wiring etc. - but in looking over the harnesses and wiring I have here, only the "car speed signal" wire confuses me. This is the pink wire and I must connect it to the Vehicle Injection computer. Is there another name for this computer? I can't seen to be able to locate it on my 2005 Toyota Matrix. Also, I prefer to mount the GPS antenna on the dash. Are you guys getting a good strong signal? Thanks, Marc Look for whats called a VSS wire. See the following link: http://www.tundrasolutions.com/forums/c ... -vss-wire/ It may or may not help, just try to locate a wire with the same characterlistics (Violet/White) even if its in a different spot. Also, you can put your GPS antenna on the dash, but be prepared for your altitude to be off by a few feet. This is my personal experience, others may disagree. Quote Link to post Share on other sites
jrdiesel Posted November 18, 2008 Report Share Posted November 18, 2008 VSS = White/Green at Instrument Cluster, Pin 18 (AC) Quote Link to post Share on other sites
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