T144 bluetooth and gps

Hi, i am using the T144 with the latest alpha build of meshastic (firmware-heltec-mesh-node-t114-2.5.13.1a06f88.uf2) and have the whole in the green case.

I have a few questions since this is my first T144:

  1. I am searching on the GPS module for an external GPS antenne seems there is no connector for this, maybe an suggestion? The reason is i found out some gps modules have problems finding the gps when used within a house. I have for that reason an external gps antenna to be able to test also internally. Getting a GPS lock seems impossible with the T144 in the case. When i stick the GPS module against the window with some tape the module is able to find its location. Is the gps module influenced by plastic that much?

  2. Bluetooth connection between the T144 and my phone seem to have a weak signal. Within 5 meters the phone is disconnecting. Is this an known issue and is it hardware related or software related?

Thanks
Eelco