Holybro UM982 GPS heading

Hello

I am trying to integrate UM982 with Pixhawk cube orange on X500 V2. I followed all the instructions as per the Pixhawk website but could not get the heading from UM982. Later I checked output of UM982 with UPrecise from which i observed was GPS output:

$GNGGA,091510.00,5057.25505246,N,00653.73013267,E,5,24,0.6,48.3615,M,46.9156,M,1.0,0*54
$GNRMC,091510.00,A,5057.25505246,N,00653.73013267,E,0.004,47.0,090823,2.5,E,F,C*7A
#AGRICA,81,GPS,FINE,2274,292528000,0,0,18,27;GNSS,232,23,8,9,9,15,10,5,4,7,5,6,-0.9135,1.4475,-0.0400,0.0541,0.0978,0.1225,0.5867,-0.4194,0.0000,0.003,0.001,0.002,-0.002,0.051,0.040,0.065,50.95425087438,6.89550221116,48.3615,3996923.3714,483362.5189,4930414.1171,0.0550,0.0981,0.1250,0.1175,0.0941,0.0748,50.95425908545,6.89548161083,95.3171,0.00000000000,0.00000000000,0.0000,292528000,1.000,46.991943,46.915642,0.000000,0.000000,6,0,0,0*c64c9770

Last data command has heading data but autopilot device code does not have any parser to use that data. So I had to change UM982 output to get it working. is it supposed to be like that?

PX4 / PX4-GPSDrivers

Holybro UM982 GPS heading #139