prometheus to signoz

how do i send prometheus data to signoz i tried adding remote write in my prometheus

remote_write:
      - url: "http://signoz-otel-collector-metrics.monitoring.svc.cluster.local:13133"
      - url: "grpc://signoz-otel-collector.monitoring.svc.cluster.local:4317"

in prometheus logs iam getting

`
ts=2024-02-07T11:49:37.119Z caller=dedupe.go:112 component=remote level=warn remote_name=be37de url=grpc://signoz-otel-collector.monitoring.svc.cluster.local:4317 msg="Failed to send batch, retrying" err="Post \"grpc://signoz-otel-collector.monitoring.svc.cluster.local:4317\": unsupported protocol scheme \"grpc\"

i have added prometheus scrape job in otel-metrics-collectro to collect from prometheus

`
prometheus:
        config:
          scrape_configs:

          - job_name: prometheus-istio
            static_configs:
            - targets:
              - prometheus.istio-system.svc.cluster.local:9090

i installed signoz through helm from signoz documentation on eks cluster iam trying to get scrape data from istio namespace where i configured prometheus kindly assist