# Installation with Craftsman - No free slots?
**URL:** https://community.garadget.com/t/installation-with-craftsman-no-free-slots/247
**Category:** Wiring Openers
**Tags:** opener, wiring, liftmaster, craftsman
**Created:** [July 29, 2016, 12:42pm UTC](https://community.garadget.com/t/installation-with-craftsman-no-free-slots/247 "2016-07-29T12:42:12Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@vtoshach](https://community.garadget.com/u/vtoshach)
#### Post date: [July 29, 2016, 12:42pm UTC](https://community.garadget.com/t/installation-with-craftsman-no-free-slots/247/1 "2016-07-29T12:42:12Z")
We have a Craftsmen 41ac150-1m that has only 4 slots. Red, White, White, Black. No free slots. What do we do?
---
### Author:  [@vtoshach](https://community.garadget.com/u/vtoshach)
#### Post date: [July 29, 2016, 2:41pm UTC](https://community.garadget.com/t/installation-with-craftsman-no-free-slots/247/2 "2016-07-29T14:41:35Z")
I did find a manual online and this is what it said:
NOTE: When connecting multiple door controls to the opener, twist same color wires together. Insert wires into quick-connect holes: white to white and red/white to red.
So which is red and which is white when I have blue/black wire?
> **[114a3044.pdf](https://www.liftmaster.com/catalogresourcesv3/en-us/shared/files/tucmanuals/114a3044.pdf)**
>
> 3.99 MB
---
### Author:  [@garadget](https://community.garadget.com/u/garadget)
#### Post date: [July 29, 2016, 3:14pm UTC](https://community.garadget.com/t/installation-with-craftsman-no-free-slots/247/3 "2016-07-29T15:14:57Z")
Yes, terminals 1 (red) and 2 (white) on the opener are to be shared between the wires from wall button and those coming out of Garadget
There is no difference between blue and black; any polarity will work, though make sure that wall buttons wires return into their previous spots.