# S13 Auto vs S13 Manual chassis wiring differences

**URL:** <https://forums.speedlife.net/t/s13-auto-vs-s13-manual-chassis-wiring-differences/234393>\
**Category:** SON240sx Automotive\
**Created:** [December 31, 2013, 11:27am UTC](https://forums.speedlife.net/t/s13-auto-vs-s13-manual-chassis-wiring-differences/234393 "2013-12-31T11:27:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![blank](https://avatars.discourse-cdn.com/v4/letter/b/a4c791/32.png) [@blank](https://forums.speedlife.net/u/blank)\
**Post date:** [December 31, 2013, 11:27am UTC](https://forums.speedlife.net/t/s13-auto-vs-s13-manual-chassis-wiring-differences/234393/1 "2013-12-31T11:27:01Z")

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So what are the differences? From my understanding it is just the lower harness and the fuse box…is this correct? Is there any way to change this?

Reason behind this is I am putting sr20 into my auto s13 chassis. I am going to use a Wiring Specialities harness. Now they offer the harness for Auto or 5 speed cars but I want to use the regular 5 speed harness just for re-sale purpose.

Google has yet to show me a guide for changing wiring from auto to 5 speed as it isn’t really needed for auto to manual swaps…