Cable not fitting

[hav]

Hello,

I am trying to install the unit but the cables do not fit. Please see the attached picture. The left cable is the one that came from my old unit and the right picture is your unit. If I install the new unit with the old cable then the fuse blows.
Please advise.

https://photos.app.goo.gl/GJL9UEtDc2duXbk2A

Thanks