Horn connector

[MPRCTCL]

Anyone know how to release this connector from the horn assembly? The fuse blows immediately when using the horn and I am trying to troubleshoot it, but cannot get the connector off. I slid the grey part off, but not sure what to do now and it is almost a blind operation where it is sitting.

TIA

 

[MPRCTCL]

Well that's embarrassing...