# (Cluster) Speed sender wires

**URL:** <https://forums.speedlife.net/t/cluster-speed-sender-wires/123469>\
**Category:** SON240sx Automotive\
**Created:** [April 11, 2009, 9:03pm UTC](https://forums.speedlife.net/t/cluster-speed-sender-wires/123469 "2009-04-11T21:03:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![SRI\_Motorsports](https://avatars.discourse-cdn.com/v4/letter/s/e5b9ba/32.png) [@SRI\_Motorsports](https://forums.speedlife.net/u/SRI_Motorsports)\
**Post date:** [April 11, 2009, 9:03pm UTC](https://forums.speedlife.net/t/cluster-speed-sender-wires/123469/1 "2009-04-11T21:03:47Z")

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Hey guys,  
I have made my custom autometer guage cluster in position of the OE. One problem I am having is my speedometer. I need to know what colour the sender signal wire is and the return wire colour from the ecu to the guage. I usually have access to a shop computer to figure all this out but am out of luck until tuesday. Do any of you guys know what colours I need for signal and return? I would love it if some one here could help me out this weekend. Thanks in advance.